Microsoft seems to be making a bet that people want their consoles to do more. Sony seems to be focusing just on delivering a better pure gaming experience. I get the sneaking suspicion that "gamers" are going to like Sony's approach more.
Edit: Sony apparently didn't "clearly lose" the current-gen battle.
And the PS3 was released a year later than the XBox 360.
The part that's missing here is that those stats are after ~8 years of normalization. Many people that only bought a single console at first may now have two or three from that generation (i.e. could only afford one console, but over the course of close to a decade could save up and buy one or two more, especially after price drops).
The PS3 was also one of the first BluRay players, and IIRC in Japan Sony is a more trusted brand than Microsoft (or at least was). These are all factors at play here.
This is why Microsoft needs to split up. They think that their ecosystem itself delivers more value than what it's actually worth. There's simply no focus on what their customers actually want.
You're only as good as your current console.